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Finding the Fourth Proportional to 418,336.31, 577,307.73 and 227,349.74

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Solution

The fourth proportional to 418,336.31, 577,307.73 and 227,349.74 is: 313,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,336.31 : 577,307.73 = 227,349.74 : x
  2. Step 2: Convert to fraction form
    418,336.31/577,307.73 = 227,349.74/x
  3. Step 3: Cross multiply
    418,336.31x = 577,307.73 × 227,349.74
  4. Step 4: Simplify right side
    418,336.31x = 131,250,759,428.95
  5. Step 5: Solve for x
    x = 131,250,759,428.95/418,336.31
  6. Step 6: Final answer
    x = 313,744.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.